[1] The album was strongly affected by the events of the 2011 Tōhoku earthquake and tsunami which had occurred in March of that year, during the promotional period for their single "Rookie".

[9] However, while this was happening, the band were contacted to write a theme song for the Tsuyoshi Kusanagi drama 37-sai de Isha ni Natta Boku: Kenshui Junjō Monogatari,[6] which disrupted their plans for the single.

[12] "Music" had the longest production time to date for a Sakanaction single, as Yamaguchi had difficulty finalizing the song's lyrics.

[12][17] "Music" is a five-minute and twenty-two second long composition that begins with a synthesizer-based rhythm paired with whispered vocals, which builds into a dance rock song.

Originally the band asked Cornelius to remix a different song for the single, but he asked to remix "Music" instead, having grown to love the song as his son used to loudly play "Music" from his room when he was an elementary school student.

The cover art is actually a smaller, one tenth section of a hand-drawn poster made by Kamikene, who drew two artworks inspired by the song's sound.

[15][33] For the initial one-track digital download of the single, a similarly themed cover artwork was created, depicting separate photos to the standard edition.

[37] The music video features a square shot of Yamaguchi sitting down at a computer, while he listens to headphones.

In the remaining area to the left and right of Yamaguchi, a video of a girl, played by talent Ayano Kudo, surrounded by gray-scale dancers can be seen as she goes about her daily life.

[19] Entertainment Media Kulture described the video as inscrutable, believing the scenes of the girl to the left and right represented the music Yamaguchi is listening to.

[38] Entertainment Media Kulture felt that the song was a stoic look at how Sakanaction function as musical artists.

[19] CDJournal reviewers felt the chorus' echoing vocals and minimalistic development created a "floating feeling" and a "fantastic space", and that the song's final section left a "strong impact" created by the members working together in unison.

[39] Dai Onojima was overwhelmed with the song's high quality and the "clear passion" of the lyrics, which caught him off guard due to the many commercially focused sales strategies Sakanaction's management had implemented for the single, including its drama tie-up, low price and tour pre-sales ticket inclusion.

He felt that releasing a commercially focused song while singing about the reasons why they created music was a strong message about how dedicated they were as musicians.

[46] All tracks are written by Ichiro YamaguchiPersonnel details were sourced from Sakanaction's liner notes booklet.